Pneumatic-despatch apparatus.



N0.8T7;531. 4 PATIBNTED DEC. 10, 1907. ,E. A. FORDYGE.

PNEUMATIC DESPATOH APPARATUS.

APPLIOATION FILED JULY 24, 1905.-

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No; 873,531. I

' B. A. FORDYGE.

NEUMATIG DESPATGH APPARATUS.

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PATENTED DEG.10, 1907.

E. A. FORDYUE. PNEUMATIC DESPATGH APPARATUS.

APPLIUATION FILED JULY 24, 1906.

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EDMOND A. FORDYOE, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO LAMSON CONSOLIDATED .f STORE SERVICE COMPANY, OF

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NEWARK, NEW JERSEY, A CORPORATION OF r, PNEUMATIG-DESPATCH APPARATUS.

I Patented Dec. 10, 1907.

Application filed July 24. 1905. Serial'Noi 270.965.

To all whom it may concern:

Be it known that I, EDMOND A; FoRDYoE, of Boston, in the county of Suil'olk and State of Massachusetts, have invented OGIiJfllIl'l'lGW and useful Iuunovcmcnts in Pneumatic- .Despatch Apparatus, of which the following is a specification.

itiy invention relates to improvements in pneumatic dcspatch apparatus, and the objects are to connect two separate stations by a single tube for transmitting a carrier in either direction and to supply pneumatic power at one point to be used only during the timea carrier consumes in passing between two stations further, to arrange for the auto matic discontinuance of the power at the terminal after the passage of the carrier.

To carry out my invention, I unite two stations by a single tube with an air pump located preferably near one end of the tube with a suitable motor for operating said pump. Devices are provided for starting and stopping the air pump and for reversing the direction of the air current, so that at one'timc I can produce an air pressure to transmit the carrier in one direction, and at another time produce a vacuum to transmit the carrier in the opposite direction, and so that'whcn no carriers are in transit in either direction, the pump is stopped and no power is produced."-The two stations are connected by electric circuits with a devicefor starting or stopping the operation of the air pump or for reversing the direction of the air current, with circuit controlling devices at each station to control the circuit and circuit closing devices operated by the passage of'the carrier through the tube for automatically returning the parts to their position when the apparatus is not in use.

These and other objects are accomplished by the mechanism hereinafter described'and particularly pointed out in the claims.

In the accompanying drawings which illustrate a construction embodying my 'invention, Figure 1 is a side elevation with parts in section'illustrating the passage of a carrier from the left hand terminal to the right hand terminal from which it is about to be discharged. Fig. 2 illustrates the apparatus in its normal position with no carricrs being transmitted. Fig; 3 is a side elevation with parts in section and illustrating the passage ol the carrier from the right hand terminal to the left hand. terminal from which it is about to be discharged. Fig. 4 is an enlarged detail view illustrating the circuit breaker and contacts as hereinafter fully described.

Like letters of referencercfcr throughout the several views.

In Fig. l the system is shown in operation despatching a carrier from the left hand ter minal B to the right hand terminal A; to despatch a carrier from the terminal B, it is dropped into the terminal at B and dro s by gravity into the tube 0 operating t e lever 13 causing the sameto move to the position shown in dotted lines Fig. 1,1nak1-ng contact between the wires 1 and 2 causing current to flow from the wire plus from the battery through the wire 1 then back through the wire 2 to the magnetic switch 0, causing same to become excited and drawing the armature D downward making c0ntact between the contacts E and F; by this time the carrier has passed the lever B? to like parts,

which returns to its normal position, but the plus wire through the wires 1 and 2 to 6X' cite the magnetic switch, flows from the plus wire throu h the wire 3 to the oir: cuit breaker X in the terminal A to the wire 4 to the contacts E and F through the magnets M and N to the wire 5 to thesolenoid E exciting the same drawing the lever arm H u and throwing arm H down to lace the ood I in connection with the disc large pipe J from the blower J. Current then llows irom the solenoid E through the wire 6 to the solenoid switch G exciting the same, driving the solenoid core K up and completing the circuit between the contacts 0 and P, thus'completing the circuit for the motor H'- through the wire 10 starting the motor which in turn operates the blower J. Current after exciting the solenoid switch G [lows to the minus wire completing the circuit. The 0 eration of the blower J causes air to be rawn in through the pipe L through the blower to the B; the )rcssure' of air g into the terminal at the point R forces the swlnglng valve S to close, preventing air from escaping and forcing carriers from the position shown in dotted lines through the to a C to theterminal A. As the carrier passes out of the pi is J through the hood I and then to the tothe terminal OWlIl tube C at the terminal A, the carrier 5 crates the lever B? operating the circuit 'reaker and breaking contact between the wires 3' and 4 and demagnetizing the magnets M and N allowm'g't-he armature D to move upwards breaking contact between the contacts E "-and F and demagnetizing the solenoid E and carrier.

In Fi 3 the system is shown in operation despatching carriers from the right hand terminal A to the left hand terminal B. To despatch a carrier from the terminal A it is dropped into the terminalat A and drops by gravity into the tube C operating the lever B causing the same to make contact between the wires3 and 7 causing current to flow from the wire plus through the wire switch C causing the same to become eX- cited and drawing the armature D down Ward making contact between the contacts E and F. Asthe carrier passes the lever B and said lever returns to its normal posiown contact is broken between the wires 3 and 7, but the magnets M and N remain excited as the current flows from the wire 1 to the circuit breaker in the terminal B through the circuit breaker, through the wlre 8 back to the contacts E and F through the magnets M and N to the wire 9, to the solenoid F exciting same, drawing the lever H down and placing ,the hood I in connection with the suction pipe L to the biower current then flows from the solen- 01d F through the wire 6 to the solenoid swltch G excitin same and drawing the armature K up and completing the circuit betweenthe contacts 0 and P thus completing the circuit from the motor H and starting the same, which in turn operates the blower J. Current after exciting the solenoid swltch G flows to the minus w1re completing the circuit. The operation of the blower J causes'airto be drawn in through the opening A in the terminal A through the pipe C, through the terminal B, valve S in the terl mrnal B preventing air making in at this oint. Air then passes through the pipe Q i to the hood I to the suction pipe L to the 1 blower J, through the blower and is discharged through the pipe J into the atmosphere. The carrier is drawn through the tube C, through the terminal B and discharges through the valve S as the carrier passes out of the tube 0 at the terminal B it operates the lever B operating the circuit ll breaker X, breaking contact between lthe roll.

wires 1 and 8 demagnetizing the magnets M and N allowing the armature D to move upward breaking contact between E and F, demagnetizing the solenoid F aml solenoid switch G causing the armature K to drop breaking contact between 0 and P thus "stopping the motor and the flow of air. I1n- .end of the line.

The lever B is held in its normal position, as shown-in Fig. 4, by the springs m and It. This lever operates to rotate the roll I) which carries the metallic ring h from which project the contacts g on opposite sides of the The periphery of? the metallic ring, except at its contacts, is covered by insulating material. When the lever B is in its normal position the contacts g are in engagement with the blades 0 andf on the insulating block B mounted on the casing B". These blades 0 and f are respectively ter1'ninals of the wires 4 and 3. When the lever B is in its normal position the circuit between the wires 4 and 3 is completed.

When the lever B is moved downwardly by the insertion of a carrier the circuit between the terminals 6 and f is broken. At the same time that the lever moves downwardly it turns the arm 0 to move the fiber it between the blades 6 and f on the insulating block B mounted on the casing B These blades e andf are respectively terminals of the wires 3 and 7. The metal rivets g in the fiber h complete the circuit between the terminals e and f. After the carrier passes the lever B rnoves to its normal position and turns back'the arm 0, which interru ts the circuit between the terminals e an and again establishes the circuit between the terminals eand When the ever B is moved upwardly on the receipt of a carrier-from the opposite end of the tube, the roll I) is turned to interrupt the circuit. between the terminals 0 and f. As soon as the carrier passes outwardly the lever is returned to its normal position and. the circuit between the terminals 0 and f is again completed.

Having thus ascertained the nature of my invention and set forth a construction embodying the same, what I claim as new and desire to secure by Letters Patent of the United States is:

1. In an apparatus of the character described, a single tube connecting two stations and through which carriers are transmitted,

an air pump for said tube, a motor for operating said pump, electric circuits connecting both stations, a circuit maker and breaker in said circuits at each station adapted to be operated by the carriers to start or stop the; pump, and means actuated by the electric station and adapted to be operated by thecarriers to start or stop the pump. I

3. In an z apparatus of the character described, a sing e tube connecting two stations and through which carriers are transmitted, an'air pump for said tube, a motor for operating said pump, electric circuits connecting both stations, an automatic circuit maker and breaker in said circuits at each station adapted to be operated by the carriers to start or stop the pump, and means actuated by the electric current passing through said circuits for reversing the direction of the current of air through said tube.

4. In an apparatus of the character de scribed, a single tube connecting two stations and through which carriers are transmitted,

an air pump for said tube, a motor for operating said pump, electric circuits connecting both stations, and an automatic circuit maker and breaker in said circuits at each station and adapted to be operated by the carriers to start the pum 5. In an a paratus o the character described, a sing e tube connecting two stations and through which carriers are transmitted, an air pump for said tube; a motor for operating sald pump, electric circuits connecting both stations, and an automatic circuit maker and breaker in said circuits at each station and adapted to be operated by the carriers to stop the pump.

6. In an apparatus of the character described, single,tube connecting two stations and through which carriers are transmitted, an air pump for said tube, a motor operating said pump, electric circuits connecting both stations, an automatic circuit maker and breaker in said circuits at each station adapted to be operated by. the carriers, and means actuated by the electric current passing throu 11 said circuits for reversing the direction 0 the air current through said tube.

I In testimony whereof, I have signed my name to this specification in the presence of two subscribing witnesses, this 20th day of July A. D. 1905.

EDMOND A. FORDYCE.

Y Witnesses: A. L. MEssER,

L. G. BARTLETT. 

